2 * Copyright © 2009 Red Hat, Inc.
3 * Copyright © 2000 SuSE, Inc.
4 * Copyright © 2007 Red Hat, Inc.
5 * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
6 * 2005 Lars Knoll & Zack Rusin, Trolltech
7 * 2008 Aaron Plattner, NVIDIA Corporation
9 * Permission to use, copy, modify, distribute, and sell this software and its
10 * documentation for any purpose is hereby granted without fee, provided that
11 * the above copyright notice appear in all copies and that both that
12 * copyright notice and this permission notice appear in supporting
13 * documentation, and that the name of Red Hat not be used in advertising or
14 * publicity pertaining to distribution of the software without specific,
15 * written prior permission. Red Hat makes no representations about the
16 * suitability of this software for any purpose. It is provided "as is"
17 * without express or implied warranty.
19 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
20 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
23 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
24 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
25 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
36 #include "pixman-private.h"
37 #include "pixman-combine32.h"
38 #include "pixman-private.h"
40 #define SCANLINE_BUFFER_LENGTH 8192
43 general_composite_rect (pixman_implementation_t *imp,
57 uint8_t stack_scanline_buffer[SCANLINE_BUFFER_LENGTH * 3];
58 const pixman_format_code_t srcFormat = src->type == BITS ? src->bits.format : 0;
59 const pixman_format_code_t maskFormat = mask && mask->type == BITS ? mask->bits.format : 0;
60 const pixman_format_code_t destFormat = dest->type == BITS ? dest->bits.format : 0;
61 const int srcWide = PIXMAN_FORMAT_IS_WIDE(srcFormat);
62 const int maskWide = mask && PIXMAN_FORMAT_IS_WIDE(maskFormat);
63 const int destWide = PIXMAN_FORMAT_IS_WIDE(destFormat);
64 const int wide = srcWide || maskWide || destWide;
65 const int Bpp = wide ? 8 : 4;
66 uint8_t *scanline_buffer = stack_scanline_buffer;
67 uint8_t *src_buffer, *mask_buffer, *dest_buffer;
68 fetch_scanline_t fetchSrc = NULL, fetchMask = NULL, fetchDest = NULL;
69 pixman_combine_32_func_t compose;
70 store_scanline_t store;
71 source_pict_class_t srcClass, maskClass;
72 pixman_bool_t component_alpha;
77 if (width * Bpp > SCANLINE_BUFFER_LENGTH)
79 scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
85 src_buffer = scanline_buffer;
86 mask_buffer = src_buffer + width * Bpp;
87 dest_buffer = mask_buffer + width * Bpp;
89 srcClass = _pixman_image_classify (src,
93 maskClass = SOURCE_IMAGE_CLASS_UNKNOWN;
96 maskClass = _pixman_image_classify (mask,
101 if (op == PIXMAN_OP_CLEAR)
104 fetchSrc = _pixman_image_get_scanline_64;
106 fetchSrc = _pixman_image_get_scanline_32;
108 if (!mask || op == PIXMAN_OP_CLEAR)
111 fetchMask = _pixman_image_get_scanline_64;
113 fetchMask = _pixman_image_get_scanline_32;
115 if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
118 fetchDest = _pixman_image_get_scanline_64;
120 fetchDest = _pixman_image_get_scanline_32;
123 store = _pixman_image_store_scanline_64;
125 store = _pixman_image_store_scanline_32;
127 /* Skip the store step and composite directly into the
128 * destination if the output format of the compose func matches
129 * the destination format.
132 !dest->common.alpha_map &&
133 !dest->common.write_func &&
134 (op == PIXMAN_OP_ADD || op == PIXMAN_OP_OVER) &&
135 (dest->bits.format == PIXMAN_a8r8g8b8 ||
136 dest->bits.format == PIXMAN_x8r8g8b8))
143 bits = dest->bits.bits;
144 stride = dest->bits.rowstride;
156 mask->common.type == BITS &&
157 mask->common.component_alpha &&
158 PIXMAN_FORMAT_RGB (mask->bits.format);
163 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
165 compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
170 compose = _pixman_implementation_combine_32_ca;
172 compose = _pixman_implementation_combine_32;
181 for (i = 0; i < height; ++i)
183 /* fill first half of scanline with source */
188 /* fetch mask before source so that fetching of
189 source can be optimized */
190 fetchMask (mask, mask_x, mask_y + i,
191 width, (void *)mask_buffer, 0, 0);
193 if (maskClass == SOURCE_IMAGE_CLASS_HORIZONTAL)
197 if (srcClass == SOURCE_IMAGE_CLASS_HORIZONTAL)
199 fetchSrc (src, src_x, src_y + i,
200 width, (void *)src_buffer, 0, 0);
205 fetchSrc (src, src_x, src_y + i,
206 width, (void *)src_buffer, (void *)mask_buffer,
212 fetchMask (mask, mask_x, mask_y + i,
213 width, (void *)mask_buffer, 0, 0);
218 /* fill dest into second half of scanline */
220 fetchDest (dest, dest_x, dest_y + i,
221 width, (void *)dest_buffer, 0, 0);
224 compose (imp->toplevel, op, (void *)dest_buffer, (void *)src_buffer, (void *)mask_buffer, width);
227 store (&(dest->bits), dest_x, dest_y + i, width,
228 (void *)dest_buffer);
233 compose (imp->toplevel, op, bits + (dest_y + i) * stride +
235 (void *)src_buffer, (void *)mask_buffer, width);
239 if (scanline_buffer != stack_scanline_buffer)
240 free (scanline_buffer);
244 general_composite (pixman_implementation_t * imp,
246 pixman_image_t * src,
247 pixman_image_t * mask,
248 pixman_image_t * dest,
258 _pixman_walk_composite_region (imp, op, src, mask, dest, src_x, src_y,
259 mask_x, mask_y, dest_x, dest_y, width, height,
260 general_composite_rect);
264 general_blt (pixman_implementation_t *imp,
271 int src_x, int src_y,
272 int dst_x, int dst_y,
273 int width, int height)
275 /* We can't blit unless we have sse2 or mmx */
281 general_fill (pixman_implementation_t *imp,
294 pixman_implementation_t *
295 _pixman_implementation_create_general (void)
297 pixman_implementation_t *imp = _pixman_implementation_create (NULL);
299 _pixman_setup_combiner_functions_32 (imp);
300 _pixman_setup_combiner_functions_64 (imp);
302 imp->composite = general_composite;
303 imp->blt = general_blt;
304 imp->fill = general_fill;